Tamping device.



G. A. ANDERSON.

TAMPING DEVICE. APPLICATION FILED JAN. 24, I916- Patented Mar. 13, 1917.

Ewe/whom I rinrrnn GEORGE A. ANDERSON, I'IXON, ILLINOIS.

TAMPING DEVICE.

Specification of Letters Patent. Patented Rial, 13, 1917.

Application filed January 24, 1916. Serial No. 73,828.

To all whom it may concern:

Be it known that I, Gnoucn A. ANDERSON, a citizen of the United States,residing at Dixon, in the county of Lee and State of Illinois, haveinvented certain new and useful Improvements in Tamping Devices, ofwhich the following is a specification.

My invention relates to tamping devices, of that class which are used inconnection with concrete formations, in the manufacture of bricks, infoundry work,v and for similar operations. Some of the purposes of thepresent invention are to provide a simpler means for the operationthereof, and also greatly increase the range of usefulness of themachine.

In the drawings: Figure 1 shows my invention in perspective, in positionwhen in use. Fig. 2 is a detail of the frame supporting devices,transversely of the frame.

1 represents a circular track adapted to be attached to the ceiling of aroom by means of brackets 2 connected therewith. Supported on the track1 is a carrier 3, by means of rollers 4i on the carrier which engage theupper edge of the track. Depending from the carrier 3 is a support 5provided on its lower end with a head 6, upon which is pivoted a head 7so as to have rotatable movement in a horizontal plane. Fixed to the hub7 so as to project radially therefrom in opposite directions is a pairof shafts 8, upon which are rockingly supported the side arms of a frame9 by means of bearings 10 pivoted near the outer ends of said shafts.

Near one end of the frame 9 is rotatably mounted a shaft 11 on which issupported a casing 12, from which depends a tube 12', within which is arod 13, connected with the shaft 11 by any suitable devices whereby suchrod may be suitably reciprocated.

Such devices may be similar to those shown in Letters Patent of theUnited States No.

" $)4l1,033 issued to me November 23rd, 1909 for improvements inmechanical movements.

On the lower end of the rod 13 is a tamping tool let. 7

Fixed to the shaft 11 is a pulley 15 connected by a belt 16 with apulley 17 rotatably mounted on one of the shafts 8. Adjacent to thepulley 17 and rotatable therewith is a pulley 18 driven by a belt 19from a pulley 20 on a shaft 21 of an electric motor 22 mounted on theframe 9 at that end thereof opposite to the tamping devices. When themotor is in operation iovement is imparted through the pulleys 17 and18' and belt 16 to the wheel 15, rotating the shaft 11 and actuating thetamping devices' The motor can be operated from any source of electricalpower by means of wires 23 running thereto.

Botatably mounted on the support 5 is a collar are) which is attachedone end of a rod 25, the opposite end thereof being connected with theframe 9 at the tool end thereof. Between its ends said rod is providedwith a contractile coiled spring 26, the function of which is to'returnthe frame to a horizontal position after the tool end thereof hasbeen'tilted downwardly. The opposite end of the frame 9 is similarlyreturned to a horizontal position by means of a rod 27 connected withthat end of the frame at one end and with the collar 24 at the other,and provided with a coiled spring 28,1 permitting a yielding extensionof said roc. V

In operation the frame 9 can be rocked downwardly. or upwardly to anydesired position, and can berotated in a circle on the support 5.: Saidsupport being movable on the track 1 renders it possible to shift thedevice to a great variety of positions. The track can be made of anydesired size, and can be made straight instead of in a circle, or of anydesired shape.

The motor-22 is not only in a convenient position to follow themovements of the tool 13, and maintain its position with relationthereto, but it also serves as a counterbalance to overcome the weightof the tamping devices at the opposite end of the frame.

It has been usual to operate a machine of this kind with overheadshafting and gearing, and the arrangement herein shown and describedgreatly lessens the number of operative parts, and correspondinglysimplifies the machine. It also has a great amount of freedom of actionwhich the former machines did not have, being limited as they were toone spot.

hat I claim asmy invention and desire to secure by Letters Patent of theUnited States, is:

1. A device of the class described, com prising a circular track adaptedto. be secured to an overhead support; a carrier movable on said. track;a hub pivotally supported from said carrier; a frame rockingly mountedon said hub; a tool carried by one end of said frame; a motor mounted onthe opposite end of said frame; and means for imparting the movement ofsaid motor to said tool to suitably operate the same.

2. A device of the class described com prising a support; a frameconnected With said support so as to be capable of universal movements;a tool supported at one end of said frame; a motor mounted on the0pposite end of said frame and acting as a counterbalance for said tool;and means for imparting the movement of said motor to said tool tosuitably operate the same.

3. In a device of the class described, the combination of a support; aframe connect ed therewith so as to be capable of universal movements; atool carried by one end of said frame; a counterbalance on the oppositeend of said frame; and means for yieldingly controlling the movement ofsaid frame in its movement out of a horizontal plane.

a. A device of the class described comprising an overhead support; asupporting member depending therefrom; a hub pivotally mounted on saidsupporting member; a frame rockingly mounted on said hub; a tool carriedby one end of said frame; a motor mounted on the opposite end of saidframe and acting as a counterbalance for said'tool; meansfor impartingthe movement of said motor to said tool, to suitably actuate the same;and means for yieldingly controlling the action of said frame in itsrocking movement.

In testimony whereof I a'liix my signature in presence of two Witnesses.

GEORGE A. ANDERSON.

Witnesses:

WV. N. HAsKELL FRANK W. HASKELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

